14. April 2019 – Christian Jan Heiner Wolterink Reports

Students of the IAM attend trade fair BAUMA 2019 in Munich

5.00 am in the morning: departure from Freiberg…

Logo of the trade fair Bauma 2019At 5.00 am in the morning (it felt like shortly after midnight…), our bus was ready to go. Sponsored by the Association of Friends and Supporters of the Institute for Mineral Processing Machines, it brought a selected group of students – specializing in the fields of Mineral Processing Machines, Mining and Special Civil Engineering Machines, as well as other disciplines at the TU Bergakademie Freiberg – safely through all traffic jams in the Munich area and, with only a slight delay, eventually reached its destination: the exhibition grounds of the BAUMA 2019, the world’s leading trade fair for construction machinery, building material and mining machines, construction vehicles and equipment.

Exciting and informative visitor program at the fair

Students of the TU Bergakademie Freiberg alongside Dipl.-Ing. Martin Lanzl during the tour of the stand of the Bauer Maschinen GmbH
Dipl.-Ing. Martin Lanzl shows the students around the stand of the Bauer Maschinen GmbH (click to enlarge)

We were already expected at the booths of various partner companies for their interesting presentations and insights into their respective new developments. Among other things, we were welcomed by Dipl.-Ing. Martin Lanzl, group leader of the development and design department at the Bauer Maschinen GmbH for their “Value Line” series of rotary drilling rigs. After showing us around the extensive stand of his company, he invited us to a fantastic lunch.

Dr.-Ing. Piotr Szczelina (Thyssenkrupp Industrial Solutions AG) presents the new eccentric roll crusher ERC25-25 to the students at the Bauma 2019 trade fair in Munich
Dr.-Ing. Piotr Szczelina (Thyssenkrupp Industrial Solutions AG) presents the new eccentric roll crusher ERC25-25 to the students (click to enlarge)

In the afternoon, Dr.-Ing. Piotr Szczelina, who obtained his doctorate at the TU Bergakademie Freiberg, awaited us at the booth of the Thyssenkrupp Industrial Solutions AG. Working in the research and development department of the company’s business unit specialized in the engineering, construction and service of industrial plants and systems, he presented not only a new type of crusher, but a completely new crusher category to us: the Eccentric Roll Crusher ERC25-25. With this newly developed, very compact machine, which is chiefly aimed at the primary crushing of hard rock and ores, fine material can be separated from the crushing chamber via an integrated pre-classification area (screening chamber). This way, high throughput rates of up to 3,000 t / h are made possible.

Main components of the ERC25-25 eccentric roll crusher of the Thyssenkrupp Industrial Solutions AG
Main components of the ERC25-25 eccentric roll crusher; © Thyssenkrupp Industrial Solutions (click to enlarge)

The eccentric roll – the crushing element of the machine – is arranged on the eccentric shaft by means of two bearings between the screening chamber and the crushing chamber. This allows for a free rotation of the roll. Hence, the comminution area on the roll surface shifts constantly, which ensures that the crushing jaws are subjected to uniform wear. This not only leads to an increased service life of the crushing jaws, but also facilitates the comminution of abrasive material.

Aumund, BHS, Doppstadt, Haver & Boecker…

Our participating Aumund scholarship holders took the opportunity to find out about current developments in the field of materials and bulk handling at the booth of the Aumund Fördertechnik GmbH. Of course, there was still enough time to spare for individual visits to other interesting companies. Naturally, the focus of attention was on stands from processing technology firms such as BHS, Doppstadt, Haver & Boecker, Hazemag and Kleemann.

Furthermore, the breathtaking demonstrations by several of the construction machinery manufacturers drew our attention, all the more since they served their attendees with some much needed isotonic refreshments. Our additional desire for a nap was then met on the way back to Freiberg…

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